Chapter 2LIving Things
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19 terms
Terms | Definitions |
|---|---|
 ecology | The study of interactions of living organisms with one another and with their envirorment. |
| biotic | Describes living elements in the envirorment. |
| abiotic | Describes the nonliving part of the enviorment. |
| poppulation | A group of organisms of the same species that live in a specific geographical area. |
| Community | All the poppulations of species that live together. |
| ecosystem | a community of organisms and their abiotic environment |
| biosphere | the part of earth where life exists |
| herbivore | organism that obtains energy by eating only plants |
| carnivore | organism that obtains energy by eating animals |
| omnivore | an animal that eats both plants and animals |
| food chain | a series of steps in which organisms transfer energy by eating and being eaten |
| food web | a diagram that shows the feeding relationships between organisms in an ecosystem |
| carrying capacity | The largest population that an area can support |
| prey | an organism that is killed and eaten by another organism |
| preditor | organism that eats other organisms |
| symbiosis | relationship in which two species live closely together |
| mutalism | A relashinship between species where both benefit |
| commensalism | a relationship between two organisms in which one organism benefits and the other is unaffected |
| parasitism | A relationship between two organisms of different species where one benefits and the other is harmed |
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